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hem·er·a·lo·pi·a

(hĕm′ər-ə-lōpē-ə)

A visual defect characterized by the inability to see as clearly in bright light as in dim light.

[New Latin hēmeralōpia, from Greek hēmeralōps, suffering from hemeralopia : hēmera, day + alaos, blind + ōps, eye; see NYCTALOPIA.]

hem′er·a·lopic (-lŏpĭk) adj.

Indo-European & Semitic Roots Appendices

Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:

Indo-European Roots

Semitic Roots

The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.

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